Electrical problems with MST70 radio

There should be a fuse in the back but it would only blow if the wiring is funny because the car's fuses are closer to the power supply and should go first, but try anyway

Hello.... it sounds like you have the remote wire for the amplifier hooked to the solid blue wire behind the radio. You need to hook to the blue/white wire behind the radio. What happens is that the solid blue wire turns on the power antenna when you are listening to the radio and it turns off (lets the antenna down) when you listen to a cd. There should be a blue/white wire that is the amplifier turn on wire that will stay on as long as the head unit is on. Hope this helped!

20 year car audio/video installer
Bay manager

Hope this helps I had same irratating problem
1. The RP200 is designed to automatically synchronize its calendar clock once it is brought within a range of 1500km of the Frankfurt DCF77 radio signal. When the RP200 is brought within this range, its auto-control mechanism will override all manual settings.
2. The clock automatically starts scanning the RF 433MHz signal after new batteries are inserted in the main unit. When receiving the RF 433MHz radio signal, the Radio Tower symbol starts to blink. A complete reception generally takes about 10 minutes, depending on the strength of the radio signal.
3. When the reception is complete, the Radio Tower symbol will stop blinking and remain solid
4. For an optimal reception, place the clock away from metal objects and electrical appliances (i.e. television, computer, monitor, etc) to minimize interference.
Notes:
• The unit will receive the RCC signals every day at 2am.
• The RCC signal can also be triggered by holding the key for 2
seconds in time mode.
• When the unit is searching or receiving the RCC signal (which lasts
about 5 minutes), none of the keys is working except the key.
• Press and hold the key for 2 seconds if you wish to stop to the
RCC signal search.
If the RP200 is brought outside the range of the Frankfurt DCF77 radio signal or if the signal is interfered, please set the time and date manually according to the instructions below. If the unit is located within the radio-controlled range, you may want to customize some of the clock settings.
Note: When no key is pressed for more than one minute, the unit returns to time mode (time, date and temperature display
World Time Clock
This function allows you to adjust the clock to a time zone. It is
particularly useful for travelers. Set the clock to the city you are located in, or to a city in the same time zone.
1. In time mode, press [MODE] twice to select the world time clock.
2. Press the key to select the city in which you are located.
3. Press to adjust the summer saving time function.
4. Press and hold [SET] to set the world time as the local time. When the local time is the same as the world time, the icon flashes.

The fuse would cause a total absence of power. Your problem is likely a blown filter capacitor in the power supply. Unless you have electrical/electronic skills, the radio will require professional repair.

There is not an easy answer for this one. Some troubleshooting needs to be done. I have seen the Rockford Fosgate system in many of the newer Sentra's. Try hooking a known working speaker to a nonworking position. This will tell if it is a speaker problem. If the problem persists, this could be stereo or amplifier.
Terrible reception troubleshooting, a bad antenna will give poor FM and no AM. If both have bad reception, this is a stereo problem. You can remove the stereo from the dash, place a small pick tool or screwdriver into the antenna jack and test reception. If the reception problem clears, this is a antenna problem. I have seen car detailers pull the connector from the rear window antenna and forget to plug it back in too.

First thing i'd do here would be to investigate if the electromagnetic interference is coming in through the supply feed. I would bring another battery on board (Charged fully), one that isnt connected to the boats electrical system and see if the emi still afflicts reception. If it stops or reduces to a permissible level one can attack the problem with emi suppressors and filters. A good place to start would be the alternator, try suppressing the emi at source.
The second path the emi takes to pollute reception would be via air straight to the units antenna.
The solution sought here might not be a single remedy but a total of 3 or 4 tweaks, each leading to a percentage improvement. try shifting the antenna too, maybe shielding might contribute some.
Jango

..just read about your reception/interference problems and, having lived through similar situations for some time — particularly with different weather conditions. The following solution has settled it all : wrap power cable around storage brackets at back of radio with a short length then wound around support posts (between radio and cupboard from which radio hangs), then run short length to power supply outlet. In my case this result comes after much experimentation with the length of unwapped power cord (including fully unwrapped and stretched out) and different patterns of winding around the support posts. This final result takes care of everything (better sound, no interference/loss-of-reception when moving around in the room or in front of the radio, weather has no effect, stations received that could not be before due to overlap by nearby, more powerful ones). I have only about 2 1/2 feet of cable running from the brackets at back of radio, then wound once around center support and half around right support to then go to wall and down to receptacle close by (I tried all kinds of combinations of unwrapped lengths and winding patterns around 1 to 3 posts)...individual cases may be different. so GOOD LUCK, 'cause the radio is great...!

Hi, to all. There are currently two types of Bose Wave Radio system available in the market. The first one being the WRCD with the top loading CD mechanism. This unit does come with the Antennae cable inside the box and this should sort out your problem. Another option is using an outdoor aerial antennae and connect this to the antennae port behind the unit. The second one is the new Wave Music System with the front loading tray mechanism. This system uses a unique concept of using the electrical cable included in the box and utilise your electrical pwoer line as the antennae receptor. I recommedn to keeping the pwoer calbe fully extended. Another solution for this is that Bose service centers do have a specific spare parts calbe called the AM/FM antennae cable for WMS which you can simply buy for around 20$ I assume. this basically bypases the power calbe and routes antennae reception through this minicable (brownish colored RJ calbe).

Glad to be of service...

I had the same problem with all three of my Roady XTs. I posted a video with directions for solving the problem on YouTube:

http://www.youtube.com/watch?v=BGMWf0aUTjw

Basically, you just need to have the antenna unplugged when you power up, and push menu right away, then select. Not sure why, but it worked on all of my Roady XTs. On the oldest one I had to push menu more than once. Good luck!

Ah, common problem. You hooked up the remote turn on wire for the amp to the power antenna wire (solid blue). Hook up the remote turn on wire for the amp to the blue wire with white stripe. The power antenna only provides power when the deck is in tuner mode for the power antenna to be extended, intuitively, and cuts power in any other mode, because certainly it's only needed for AM/FM reception.