If all you're looking for is a simple one way remote start Best Buy has been running 3 different ones for $149-189 everything included and installed. I put one on my Accord and couldn't be happier. Paid $5 at the shop when installed but everything else came with it. Works flawlessly.
I got the 4115V1D for $189 but it's up to $249 now but there's a couple others.