I give up. Have purchased the Sygic Truck app to the android phone for approx £55.00. Fingers crossed this cheaper method works alongside the old dashboard unit.Even when manufacturer map updates are available they can be a silly price, and often more expensive than a standalone Sat-Nav with lifetime FREE updates, so swapping out the head unit can be a good option even if still supported!
I would think you could get a new head unit nowadays for not much more than £100 and which offers the same as the typical 7+ year old Factory unit.
Obvious that real-time traffic is handy.my solution was that i use an old i pad mini on google maps connected by bluetooth to my onboard router it’s perfect with real time traffic etc here i have unlimited data and will run on a minimal phone signal only problem is when abroad the data restrictions might rule it out,
The Sygic is working well offline. Using Bluetooth to on board speakers for directions and the Huawei screen almost the same size as the ZENEC. Might upgrade to live traffic for £8.00 whilst on mobile data but never really needed it before.Sounds like a better plan !.
Be interested to know how it works for when my ageing TomTom needs to be replaced