I've just got a quote from AmD Technik in Bicester, UK to buy and fit a Tubi Rumore for my M5 of roughly £2,000 inc VAT (UK pounds remember (about $3600)). Is that competitive? Is there cheaper option? Plus i've got to wait at least 3 weeks because every Tubi that lands on our shores is already snapped up. No-one has any stock.