Putting in an aftermarket head unit will cost $250+ in JUST connectors, I spent $800 to put a $300 aftermarket kenwood head unit in my JK. If i were doing it again, I would probably just get the 430 and the alpine package. Also I don't lock my jeep, so the stock look is a better theft deterrent (soft top windows are $$ to replace if someone cuts them to get in..) The OEM amp mounts under your steering wheel, and its a 5 channel. It wont blow away a true aftermarket system, but it is better per $$ than what you can do aftermarket for the same price (provided you cant do all the work yourself). If you put $2000 radio's in your car, you wont like it. If you just want to hear it with the top off, the alpine upgrade is plenty good enough for the price. Im starting to regret not getting it.