ONLY INBOS20

It is pretty simple. I'm no electrical Einstein and I did it myself. Though, the sub I installed is an 8" under the seat sub, so it was already in the box and had an internal amp. Pretty simple for a beginner. I took off the front interior door trim and tapped into the rear speaker lines using a dual channel line converter (which required me to do it to both rear speakers). The truck has a rubber nipple looking accessory port that you can puncture and push your power wire through. Another trick is running your remote power line directly to a spade in the passenger side fuze box. Easy peasy. My only complaints with the factory head unit are, it doesn't save my equalizer settings (I don't know why) so I have to reset them each time. Not a big deal considering there are only three settings available.... but that's also a con in my book. And, supposedly I'd get better sound quality if I upgrade to a higher end head unit, but I'm admittedly no expert, so the audio salesman might be full of crap about that. The 8" definitely improved the lows in the music, but REALLY lacks ballz. So, I am adding a 10" with double the power of the first, so hopefully I'll get some thump added to the setup. That being said, I also upgraded the factory speakers, which in my opinion are trash. I definitely recommend upgrading those if it's in your budget. Point of my long-winded response is, if you can research you tube videos, have a decent set of tools, and half a brain, you can probably get it done without paying installation fees. Sláinte