I'm assuming that the tuner module just connects to the aerial and the ISO connector.

No, it connects to the aerial and the tuner connector which is a separate connector from the ISO connector.


I'm hoping it'll drop through the whole in the bottom of the empeg sled.

Don't count on it. Even if it could fit through the hole, you'd still need room to work and you'd need to be able to reach the connecors and get them hooked up. Plus, it will have a power-antenna activation lead that (on some vehicles) will need to be connected properly.

Just plan on removing the sled again.

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Tony Fabris