Bought a new Pioneer 700 Deluxe 2 weeks ago and I have been busy with modifications already. I installed a Boss Bluetooth radio and two 4 1/2" speakers, a reverse light that comes on when you shift to reverse, a dome light, a bed light (so I can see which beer I'm grabbing), and I installed some new LED headlights from Ebay which didn't help much but they are not yellow at least. I have a light bar I am trying to fabricate a mounting bracket for now. Just wanted to share. Thanks for all who have posted their modifications so I could see how most have done and try and duplicate.