Thanks for replying. My 18 year old's newly acquired 2003 does have a factory amp under the passenger seat. That's the "tunes" part of the "moon and tunes" package. The "moon" part is the moonroof. The vehicle has tweeters on each front door as well. Was all set to do a...

Hello, I am purchasing the Pioneer MVH-200EX from Crutchfield to replace the original head unit in a 2003 Vibe with the Moon and Tunes package. I've read on this forum that something like a Scosche SLC4 Line Output Converter is necessary to use because of the factory amp. Other people, however, say ...