My brother installed a 7100 into my car while he had it and he just gave the car back. I noticed a speaker going in and out, so I pulled it out to see a bad solder.
In doing so, I noticed he cut off all the RCA inputs for the amp. Would a repair shop able to re-install these or just get a new unit?
2009 Volvo S60 with harness/adapter from Incartec in UK.