Nuvi 660 mount question

Has anyone purchased a "Suction Cup Mount with 12-Volt Adapter for Nuvi 660" kit by Garmin? It has Garmin part number (010-10935-02), but it's not listed at Garmin site. I found it on several sites including Amazon showing it in a Garmin packaging.

The reason for this question is it seems to be a bundling of the Suction cup mount (Part# 010-10823-00, replacement part for original) and Vehicle power cable (Part# 010-10747-03, no FM receiver), both can be found on Garmin site and lists for $47.73 and $28.00 respectively. I can get these from Amazon for $28.74 and $22.35 which totals $51.09, but still much more than the kit for $35.58 (also from Amazon).

I'm thinking about getting this kit for my 2nd car if it is indeed the bundled package of the abovementioned parts. It's just hard to believe it's that much of a difference (I know kits typically cost less, but 30% less?)

I know the power cable doesn't have the FM receiver, but I'm not crazy enough to shell out $214 (list) for GTM20 and I don't want to be moving cables between the two cars...

Your input are appreciated.