Can I use an external GPS Receiver via Bluetooth?

Question

Great phone.  I used a Galaxy Nexus for over a year until I got this phone, but once I started using the Z10, I never looked back.  The "Hub" is a GREAT feature, exactly what I use most of the time.  Oddly enough, I was never much of a BB fan until the Z10.
Anyhow, I have bought several apps and accessories for the Z10.  I rely on my Z10 a lot.
I still have (from my old Windows Mobile 6 phone days back several years ago) a perfectly working external GPS receiver that has Bluetooth (Holux GPSlim236).  Great little receiver.
Since I often use my Z10 for GPS nagigation (I am using Mireo DON"T PANIC) for directions whilst riding my motorcycle all day long, with Bluetooth enabled to my helmet, having the GPS radio on as well as Mobile (aka phone) and Bluetooth does drain the battery faster than if I could avoid using the internal GPS at this time (I still want to use the internal GPS at other times).  I do have a data plan, so I could use the internal maps, however, I often ride through places with no data access (back country).
I was able to pair the Bluetooth GPS Receiver to the Z10 (easy enough), however, there is no option in the "Network Connections" settings area to be able to disable the internal GPS radio, or anywhere else, so I can't tell for sure that this is working (that is, not using internal GPS but using external GPS).  I suspect it is not using the external GPS Receiver, though, since Bluetooth settings indicate "no services" for the external Bluetooth device.
Is there a way to sometimes use the external Bluetooth Receiver on the Z10 (in order to save battery on long trips)?
It is also not just for battery power savings, but also when I ride there is no air conditioning, so the phone does get hot, and I suspect would be cooler if I used an external GPS receiver via already-enabled-anyways Bluetooth.
Thanks

Answer 1

I am not sure my original message was clear.
I have th Z10, it has GPS software and a built-in GPS radio receiver.  I also have an external GPS radio receiver, not a GPS device.  It is strictly a radio receiver.  I used to use it years ago on my Windows Mobile device - the software with maps was on Windows Mobile, and the GPS receiver hooked up via Bluetooth.
The GPS receiver in the Z10 uses the Z10 battery.  I have the Bluetooth on anyhow to connect to my helmet headset.  Since Bluetooth is on already, I could save Z10 battery by using the external GPS radio receiver (disable the internal GPS radio receiver), thought the map software would still run on the Z10.
So, the previous response says "does have GPS profile" but also says "external GPS will not work:".
I am not sure the statement was respect to my setup.
What I really need is for the Z10 Bluetooth to see the external GPS receiver, perhaps as a serial  device or as a GPS device, howsoever such things work, and for the GPS map software to use the external rather than try to use the internal (the map software should not really care, it should be the OS that virtualises the GPS port).