20. first got into when i was 15. put in a blaupunkt head unit, sub amp and a shitty walmart tube woofer in my grand am that i couldnt even drive yet lol
22 and I did my first CD player install with a friend, who was 17, when I was 13. I had my first pair of subs (MTX Terminators), off of a home audio amp doing about 200rms or so to the pair, when I was 13 as well.
I am 25 and have been into car audio since i was 13, i got a bass tube when i was almost 14 in my firebird.. i would drive in my parents field and pound my stereo, i don't think the neighbors liked that to much:naughty: