eist1, that price sounds right. im assuming you didnt get the wire trim piece since you already have a similar set up from stock. the plug you have on the previous mirror is a 7 pin while the new one is a 10 pin. the only way you could use the existing wires would be to do some extra work. im a helicopter electrician so wiring is my forte haha. anyway you would need to pop off the 7pin connector. one of your two wires is ground the other is 12V switched.the power should have a white stripe on the wire if not do this. Take a paperclip and make it straight. insert the paperclip into one of the slots. use a mulitmeter or one of those power finders with a bulb in the handle. use the paperclip lead and find somewhere to ground. now turn the car on. if it didnt light or show volts, turn it off and try the other. one should give you the power.mark the power wire with tape. now this is the pain in the butt. pull the paperclip. unlock the plastic lock on the connector, unocking the metal connectors on the end of the wires inside. they wont just slide out. you will need to use a paperclip again or something similar. with a keen eye find which of the four sides on the little metal inserts at the end of wire has the locking tang.your going to use your paperclip or something thin to push between that tang and the plastic connector housing. when you do that (from the front of the connector, not the back where the wires go in)youll have unlocked it. gently pull the wire from the back. do this for both. when you get you gentex51 you will need to find and remove the same two wires that you already have. When you get the new harness for the power, peel off the two wires from the main harness and take them out of the plug like before. your basically just swapping two wires you have to the new 10 pin. hope that helps.