June 11, 2013 3:38 AM PDT
Before you buy a good aftermarket, go get a cheap crap one from Wal Mart (so you can return it), or see if someone you know has an old one laying around to test before throwing around unnecessary money. You don't need to mount it, you just need to connect the wires. You can also try hooking up speakers from a home stereo to your bike's stereo (just put the the power wires to a car or bike battery) to be sure that the stereo is cashed.