How much does an amplifier installation kit by roadworks retail for?

Question

My bf bought a box of radioshack stuff at an auction. One of the items is an amplifier installation kit by Roadworks (model aw-ak35). I would now like to sell this item, but obviously could not find a retail price elsewhere. Anyone have a ballpark figure? While I'm at it, price for a GameCube Game Switch? Very thankful for any input!

Answer 1

its metra....

retail is $62.17, but you are getting nowhere near that haha

Answer 2

Retail price for a Metra AW-AK35 is around $62.

GameCube Game Switch?  Is that the RF Switch & Modulator?  If so, $29.95.