Need help with install, No sound!
 

I sold my amp to my friend to run his Infinity Kappas Active in his 2005 Subaru Legacy GT.
He had been using the Kappas up front passively for awhile but he does not have a sub right now so we had the bight idea to go ahead and run them actively since the amp I sold him (JBL MS-A1004) has built in line in convertors and has on board digital crossovers. We got both sides installed and all the wires mounted and turned on the amp and set the crossovers and everything looks good.

We go to try on the car and try to play some music for the first time and there is no sound coming out of ANY of the speakers; even none coming out of the rear speakers that we have not touched.

All we did was added speaker wire to the factory wire that was in his door and ran it to the line out convertor on the amp. Did not touch the head unit or any other speakers in the car at all. just the front door wires. The amp works fine and we have checked all the fuese and all of them work so we are completely stumped.
We could understand if the front speakers did not work since maybe we had a wire mixed up but we do not understand why none of the speakers in the car work now. The head unit powers up fine but does not output any sound.
We can not tell if there is a factory amp in the car or not, we have been told different things.

Any help would be great!
Thanks!

From my meager knowledge, your best bet is to start at the source and check for problems working your way down the line. Start at your head unit to see if it's putting out signal. If so, check your lines at the amp to see if you have signal there. Then check the output of the amp, so on and so forth... Sounds like there's a fuse you're missing or something, I'm really too tired to actually make my brain think about it right now :tup:

start with the simple.. get back into the doors, and remove the wires you added. see if things work as they did.
sounds to me like one of your speaker wires is making chassis ground.

Thanks. Ill rip the how system apart on Wednesday and hopefully it is just a chassis ground!:confused::confused:

Let us know what you find!


Sent from my iPizzle using magic and new-fangled science stuff