I've been planning to install an automatic aerial for a while and have finally got round to it. I first big decision was which model to fit. I went for the Hirschmann (HIT AUTA 2040) all the fitting instructions and measurements are online which is very useful. This is a modern replacement ariel but at least it is made by the original suppliers to W111 Mercedes (and it is the model that all the dealers were selling at Essen) and can be found on ebay for £30. It has a stainless ariel and chrome fittings so does look the part.
The installation was very easy. The car was already fitted with a manual aerial so the hole had already been cut in the front wing. The aerial fits very easily in the space under the wing as shown here.
I have a Becker Europa radio with a connection for an automatic aerial and the wiring loom has a connection for the aerial so it was just a matter of hooking up all the right connections.


