It's easier to scratch that check out every month, when you got what you wanted the first time!! I personally like the peace of mind with the TRD parts....yes you will pay more...but, you get what you pay for.

 

I wanted the factory nav system when I bought mine but didn't want to spend the money. I ended up buying mine on eBay for 900.00 new in box and installed it myself with the Randol Nav Fix. I saved 1000.00 YAHOO !! But it's all good.