4 replies to this topic

[Y2kGoofball]

Hey all

Ok last week I brought an Alpine something or other Head Unit.

I had previously had the factory head unit wired up to an amp and the door speakers running off this amp. I decided that with the new head unit I would put the door speakers back to factory (ie factory wiring running to the head unit)

I was driving the car and all of a sudden the sound just died. I thought it was the radio station so I changed .. nope. Tried CD ...nope.

I put it down to perhaps just good timing that the standard head unit packed it in 3 days out from having a new HU installed. Its 6 years old this year.

I had the Alpine professionally installed on Saturday. I havent really driven the car until today where its been on most of the day. I had it on out in the driveway, popped inside to grab something, and when I got back out it was ... erm ... dead!

Both radios have lights and full fuction, just no sound. With the new HU I can hear something spike the speakers on startup, theres like a little "dink" sort of sound, but after that dead silence. I tried the reset of the Alpine but nothing.

I'm thinking maybe Ive fked up the wiring on one of the speakers and muddled up + and -

Would this have damaged my head unit? Is there anything I can do to try and fix the problem? I'm thinking the dink sound to the speakers is a good sign that its still sending a signal out.

From memory the radios a Alpine CDR-9852

Please help

[Y2kGoofball]

ok well I dont know what happened but it come good :clapping:

I read on this forum about someone who had troubles, and they stripped the doors down and tried new speakers yadda yadda yadda, which somehow game me an idea.

Went out to the car, and adjusted the fader and balance to front left. Still nothing. Switched the ignition off and back on and wallah, audio from the front left speaker. I played with the settings again to check all speakers, back left, back right, front right, then center / even.

I'm thinking I might have a speaker issue of some sort? I think one of them is broken but I didnt think it'd affect the head unit like that??

Hopefully it can last a few weeks till ive got the money to get a professional install of Alpine speakers and fresh, suitable cable.

Has anyone heard of this happening or know what could cause it? Would the head unit (or head units) stop feeding audio if theres a problem or could 1 faulty speaker stop all 4 from working?

I'm thinking there wasnt anything wrong with my original head unit either. I did try the fader and balance but I didnt switch the ignition off. If I can get hold of a VT or VX I'll give it a shot just to see.

Im wrapped I havent killed the head unit, but I'm also a bit nervous if it happens again I might damage the head unit altogether.

Has anyone heard of this happening??

[SlimLim]

just skimmed read this but it sounds like u have a short. This usually occurs when theres a break in the wiring or any part of the signal that touches metal on your car. This will cause the silence, then the POP.
I would start by checking all the wired you touched and inspecting them. I would also have a look at the speaker terminals and making sure they havent been bent and accidently touching the metal on the doors.
Mixing the + and - terminals will jsut make the speakers out of phase. It wont cause the system to cut out.

[Y2kGoofball]

thanks for that

The plan is to take off the door panels tomorrow and have a looksy.

Im guessing if it is shorting and it does it again in the future then there is all possibility of doing damage to the head unit? Just out of curiosity??

[SlimLim]

Yeh it doesnt soundhealthy. I wouldnt turn on your system unless diagonsing, even then volume very low so u can jsut hear it, and on for short periods of time. Thats my recomendation