I purchased a Sony CDX Gt-520 Head Unit for my car. I already had an amplifier from Interfire and 2 10'' JL Audio Subwoofers. I hooked up everything and it works extremely well with the tuner. However when I switch to the cd player or my auxilary (which has my ipod connected it) the amplifier shuts off and the subwoofers do not play. I have reset my head unit thinking it was a setting but it did not work. Do you have any ideas on what could be wrong? The product underneath is not my product but you couldn't find mine.
I had the same problem. most radios have a power antenna wire and an amp turn on wire it sounds like your amps are being turned on by the power ant wire that loses power when you put a cd in try swapping the blue with blue and white wire this should solve it
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car running or not? if it works with the car off then I would check the alternator, your car will require more power from your already low battery causing your radio to not play. If it won't start either way check all of the wiring going to it including your speakers. Could be loose or shorted wires. Could also be the switch on the unit. only way to know is to take it apart and test the switch. If all else fails then have it looked at.
Just to the left of the output (speaker) terminals, near the top of the amp, there's an LED marked "POWER/PROTECTOR". If the amp is connected properly and powered on, the LED is ON.
If the amp is being used for normal speakers, use a pair of RCA cables and connect the left/right channels to the appropriate inputs on the amp. The switch marked "LPF" should be "OFF".
If the amp is being used with the channels bridged for a subwoofer, use an RCA "Y" adapter and connect the single "Sub Out" preamp output from the head unit to both amp inputs. The switch marked "LPF" should be "ON" and the crossover set to about 80-100Hz.
-Did you verify that you have an input signal?
-Is the amp going into protection?
-If they are bridged mono, are they bridged across the appropriate terminals?
-If there is a subwoofer line out on your head unit is it muted or turned off?
make sure all your gains are turned up to atleast half.
Check your head unit, make sure your low pass frequency for the RCA's amp is set to high or set to more than 0. Make sure you don't have your fader set toward the front of the vehicle or you won't get any bass, but the subwoofer will be pulling only what the head unit is sending to the amplifier.
if that doesn't work I would try another pair of patch cables.
Do you have another subwoofer you can swap out to test your subwoofer with?
I have a subwoofer that has something wrong with the coil itself. Has your amplifier blown any fuses? If so the subwoofer coil is bad.
Also make sure you have a solid ground for your amplifier.
Hope this helps!
HI I have a cdx gt 710 deck i am having a problem with.i had it in my grand prix and took it out to put in my new to me honda.When i did this i turned it on , the deck went to test1 mode.it looks like it is in demo mode.I had this problem when changing the battery.The tech fixed it before by pressing two buttons together at the same time,Of course i forgot witch two buttons. If you could help it would be great.THANKS