hi called into the dealers today (after near collision ) to check for a replacement horn for my 2012 monte as the current one is shockingly poor apparently my monte is fitted with a single high tone horn and was told that there was no wiring to connect a low tone horn as well and if I fitted another horn it could / would void the warranty (wiring issues not enough power ? ) having got the car on the 3 yr plan not so sure what to do but the said they could fit and wire a low tone horn if space was available for £176 +vat seems very expensive the low tone horn is £46 +vat any suggestions out there thanks

How often do you toot?

Waste of money, why would you change something you rarely use.

I wouldn't bother.. As long as it passes its MOT - leave it

Halfords do some loud replacement horns for around £10 should fit the existing wiring and take 10 mins to fit , plenty loud enough , dont buy the existing wiring cant cope argument either

The wire to the treble horn is only 1sqmm. To install a bass horn (which is considered to be special equipment), a second wire is run to the OPSCU (central electronics). A ground wire is also added that connects to the loom.