Install of Navi on 2008 Base TL ?
 

Have a 2008 TL and have been told I can put a Nav system on my base model.Can get a great deal on Nav ,from a wrecked 08 . Found a source on EBAY that's selling a custom plug and play harness ( eBay item # 221404056425 ) and claims on the auction that your up and running in 10 minutes !!
Never attempted this before, and before I pull the trigger, need to know if this can be done and if so, how difficult it is to remove and install Nav ?