Ok im shure this has been covered but i want to put a aftermarket sub and amp on my head unit any info? Oh and i have a under seat sub just dont like it thanks Sent from my R800x using Tapatalk 2
unless you have preamp outputs on the headunit (RCA jacks), you'll need to make sure your amplifier has line level inputs - these are basically a set of speaker wires wired into the amp
Or you can buy a Line Output Converter (LOC) which will probably do a better job. Just make sure and buy a high quality LOC.