factory

Thought I'd start a new ramble. I've read a lot of the threads about our wimpy "excuse me" horns. I was going to replace mine with Hella Sharptone or Supertone but then I decided to just add the high pitch OEM horn from Toyota. I'm sure someone here will want to stick with factory parts and...

My Corolla came with a standard radio and I wanted to upgrade to factory navigation so I bought a used factory nav unit from a reseller. The basic installation went according to plan (I had to wire in my own GPS antenna) but was hoping that the head unit itself would be plug-and-play using the...