Line output converter

[zman246]

Hey guys, I bought a smaller powered subwoofer to add a little bass to the factory system and I know I need a line output converter because theres no audio out connections on the back of the factory head unit. Line output converters range from less than $5 on Ebay to $40+ at the store. Does anyone know if theres any difference? Some say 'handles up to 20 watt input power' or 40 watt or more. With a lower power factory HU should that even matter to me? Thanks

[jhubbz]

I bought one from Oreilly to install my old sub system on my gf's car. Haven't done the installation yet, but should be an easy install.

check this one out. It got some decent reviews.