Well let's see while at the dealer added two power ports on dash, remote terminals in the trunk, LEDs under neath, and reupholstered the seat. Then in Florida added four, 1" tweeters, 2 in front and 2 in back above passenger arm rests, replaced factory speakers with 6.5". All of the speakers are JL, and are powered by a 400 watt JL amp. Sirius satellite radio. Dual exhaust, from Zook.
Then just to prove it could be done put in a Garmin remote GPS, in the trunk, along with a back up camera above the liscense plate. Now I know you are wondering where the display for those two toys are.....How about a 4"tv monitor mounted in the steering wheel, where the air bag would be if it had one poof !