So I purchased a used Alpine CDE-102 headunit from craigslist. $50. Anyway, the guy kept the wiring harness, do I have to go buy one for my WRX? Also, I bought two factory Subwoofers from an 02 WRX to hook into my car. Will they also plug into this headunit okay as well? Anything else am I going to need? These are the only two upgrades I want to do....adding the two floor subs and the upgraded single din CDE-102.
TLDR: do i need to buy anything besides the headunit itself to plug and play with two 02 factory subs?