Z4 horn replacement
hello fellow Z4'ers
My horns have simultaneously expired (have checked everything during my scheduled service) and need replacing. My shop checked them but while they were out on the bench being tested they did not call me to replace them. Only confimred that they did not work. So now I need to replace both sides. A couple of questions:
1) Instructions on how to access and to R & R
2) Do I need to buy one low and one high pitched horn? Or can I replace with two High pitched (looked for replacement item at NAPA)
3) Is the upgrade to Hella's worth it and do I need two, or will one side suffice. Easy plug and play on these or is modification requries?
Thank you for your help in advance.