I have had Lionel from new and have wanted to upgrade the feeble horn. How do I get to it and can I fit another one adjacent? I fitted another one in parallel on my Jazz and it sounded great afterwards. That location was in front of the o/s front wheel behind the wheel arch liner. I have finally discovered it down by aircon heat exchanger, RH side when viewed from front. It looks extremely difficult to connect another one in parallel unless I remove sump guard etc.