As long as you deal with reputable shop, you will be fine. I recently had a Compustar installed in my CX and love it. Factory alarms can be limiting in their options.
No. All regular features of the smartkey/remote work, but they don't have any control of the Compustar. I have seen video's where other vehicle's smartkey's controlled the Compustar, so not sure what the difference maker there is.Can you use your Mazda remote to operate the system , the installer said he will only know when he programs the unit.
The module has to support OEM remote monitoring. Without more info on which module specifically they are installing it is hard to tell if remote monitoring can be activated or not for your remote. The CX-9 can definitely support that feature, since I have it running that way with the Fortin evo-one module. If the compustar module can handle it then it would just be an option to turn on in the settings of the remote starter.
But if you are already spending the money to buy an additional RF remote, why are you interested in using the OEM key? The OEM key will have less range than the aftermarket remote.
I'm in Ontario, I'll assume same system from dealer where you are. I ordered as dealer accessory before delivery (no way I should be installing anything more complex than a light bulb).
Sales guy said to drive away, need to turn off car and turn on again. Which I find to not be true. I find i can shift to drive and just pull away. (it did fail once, maybe just missed sensing my key?)
I tested with no key, shifting to D turned car off, as it should.
What I don't like is it doesn't seem to keep my seat heater and steering wheel heater settings, our CRV will do that. (At least it doesn't seem to from memory, but maybe i am forgetting to turn those on before leaving car?) And i find that it is sensitive to how fast or slow i press the buttons to initiate the start, so often i need to try multiple times before it starts. Not sure about aftermarket and these details.
I installed myself OEM remote start for my mazdas.
Only with my 2010 CX-9, I can start the engine remotely, open the door, turn the key and drive away.
With 2010 Mazda3 I had before, 2019 Mazda6 and CX-9, once you open the door or trunk, engine will stop and you have to start again.
Yes and is the reason why the mazda system is not as useful as the aftermarket where the engine does not turn off upon opening the door. Also a major + that you can remote start with the OEM keyfob with the compustar system