OK, so the plot Thickens....
I have imaged the
M-Audio Factory Driver CD Version 120803 (for Mac and PC) and it contains Many PCI, USB, Legacy and FW drivers for M-Audio Audio & MIDI interfaces for Both OS9 and OSX.. link here:
https://www.adrive.com/public/4kHyjU/M-Audio%20CD%20120803pass: macos9lives
The various folders have drivers for BOTH Mac OS 9.2.2 and 10.1.5 (and Higher) for many M-Audio interfaces...
Amazingly, the \FirewireSeries\MacOS922\Firewire AP folder contains a URL Link (that is dead and NO Install file !)... yet the 410 has Install 1.01 Build 3.
Once the iMac is booted, the interface stops flashing its leds and the blue led in the right corner becomes steady.
After installing the Driver I already had posted, v1.0.2 (Also the same version uploaded by supernova777) for the FW Audiophile, the leds do the same thing that Joe described, but the control panel DOES let me move all faders unlike the problems that Joe had.
However, both the routing the system sounds and the tying the ASIO driver did NOT produce any Audio thru the unit ! Like is is totally dead. The hard ware info on the Control panel says: Hardware version 0, and firmware version 0 for the unit. I also tried the FW 410 driver and FW 410 ASIO (just for kicks) but it did not work with the FW AP.
I this point I am baffled as to how I ever installed the FW AP back in the day and got it to do anything under OS 9, we should probably pull the driver and put it on the "Not working in OS 9" until we can post the right software and sequence of steps. For now, and as I have always said in the past, the PCI Audiophile 2496 is ROCK solid... this is NOT a chioce for an iMac... so we need to post info on the best FW interface for Mac OS 9.