Thanks to Herb(forum member)
Diversified antenna adapter: Mobile Emotions: Land rover RANGE ROVER 04 ANTENNA-FFM-Landrover-RANGE-ROVER-2004 (comes with a Y cable and an adapter for the smaller connector and Yes. it does make a difference).
I know on several different threads, the question about which one of the two different antenna leads that hook up to oem stereo are used on an aftermarket head unit. Some said to just hook up one to it. I went to the website and cost was 9.00(USD) and 8.50 to ship. It is a Y-connector that hooks up to both oem antenna leads and then hooks up to aftermarket.

 

Link?

 

Landrover RANGE ROVER 04 2004 ANTENNA ADAPTER Y SPLITTER 2 FEMALE 1 MALE

 

I found out of the two antennas, the larger antenna plug is am/fm, and the smaller one is FM only. and they have boosters on them.

 

Looks like Mobile Emotions is a zombie company, I ordered the Y adapter a month ago and have heard nothing from them, they don't answer email or phone.

Does anyone know another adaptor that will work? I've looked for a few hours and the only thing I can find are Y adapters with what appear to be 2 of the same size female plugs. One fellow mentions the "diversified antenna adapter and the mini GM to Motorola adapter" but gives no specifics.
Can anyone tell me exactly what to order?

Thanks