I have a stryker 955 radio.I took my radio out while it was being serviced and I put it back in but it keeps blowing fuses even if I hook it to another vehicle.I have a old 29 and that works in the truck.what could be the promblem

Service manual for the 4400 any use? It might be close enough?
https://www.cbtricks.com/radios/connex/cx_4400_cx4400hp/index.htm

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You have possibly melted a couple of wires together along the radio circuit. Also the radio unit itself has 1 or more protection fuses actually inside the unit that have blown, usually at back of unit in little bay near the wire clusters.
Check your relays too, a blow out through jump starting can do all sorts of little burn-outs.

One of the wires is most likely touching metal. I believe both work off same fuse

If you had someone else install this system and you didn't have the fuse blowing trouble before that, and if the fuses don't blow if you aren't using the radio, then they certainly have done something wrong. See a manager and keep pushing to talk to someone higher up. You might also consider contacting the Better Business Bureau in your area if you can't get help.

Now having said all that, there may be a simple wiring error at fault. Most radios have two fused power lines: one is a constant 12-volt line from the battery (to keep the clock going, remember your last settings, and so on) and the other is a 12-volt line that's switched on by the ignition key. This is the one that provides power when the radio is on, and it's got a higher-rated fuse than the other line. If the installer tapped power for the switched 12-volt line from somewhere that is being protected by another, lower-amp, fuse, the radio may just be drawing more current than that fuse can handle. So, poof it goes and anything else on that circuit goes out as well.

Make sure the switched 12-volt line is supplied direct from an accessory connection at the fuse block in the passenger compartment, or before any other fuses if tapping some other circuit for power.

Good luck, and I hope I've been able to help. Thanks for using Fixya!

any time a battery is hooked up backwards anything that contains diodes will have to be replaced.unplug the radio and see if you can put the fuse in without it blowing.when you get the vehicle going have the alternator tested,it also has diode in it.good luck.

sounds like you burnt your finals

make sure nothing in cig lighter socket..coins,etc..if nothing present,unplug cig lighter socket and replace fuse..if fuse doesn't blow,it's the socket causing fault..if it does,unplug radio,plug cig lighter back in and replace fuse..if fuse doesn't blow,radio is cause of fault..if it does,then ther is short in wiring

you got a grounded wire. check the wiring in the back of the radio if its custom radio i can almost gaurentee thats what it is. however electrical aint my best area. lemme know if i helpd any.

I had the same problem with a 25 that was just disconnected for replacement. I found a shorted diode right where the power cord came in. I also didn't like the way the electrolytic capacitor right next to it was charging so I changed it also.
Problem solved.
I am sure the 29 will have a similar setup. I you want I will look up my schematicof a 29 and tell you the numbers to check.
Of course it is also possible somehow too much voltage was applied to the radio. In which case the previous repairs will almost surely be needed.
I hope this helped, Good luck
tdill49

What size fuse are you using? If you have a different power cord than that which came with the radio, such as one from a regular cb radio like a cobra 29, it will only have a 2.5a to 3a fuse, which will blow everytime you key up, since it is pulling to many amps. You need to have at least a 7.5a to 10a fuse. I use 7.5 amp fuses, because I have a 100 count box, and have no problems. The Stryker radio I have in front of me has a 10a fuse in its power cord from the factory, though the cord on my bench only has a 7.5a and has not blown.

If your radio still blows fuses after this, please let me know. You can message me here or email me at [email protected].


Dean Pitts
Rollin CBs